USB: ark3116: remove bogus disconnect test in close

Remove bogus (and unnecessary) test for serial->dev being NULL in close.

The device is never cleared, and close is never called after a completed
disconnect anyway.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/ark3116.c

@@ -341,7 +341,6 @@ static void ark3116_close(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
 
-	if (serial->dev) {
 	/* disable DMA */
 	ark3116_write_reg(serial, UART_FCR, 0);
 
@@ -351,8 +350,6 @@ static void ark3116_close(struct usb_serial_port *port)
 	usb_serial_generic_close(port);
 	if (serial->num_interrupt_in)
 		usb_kill_urb(port->interrupt_in_urb);
-	}
-
 }
 
 static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)